Boot Display Local Dimming for Flicker-Free Backlight Startup

The patent applies preliminary action by calculating local dimming data during the Mboot initialization procedure before the Kernel program executes. The local dimming data are prepared in advance and stored, then sent to the backlight driver during the initialization procedure, ensuring that backlight control is established before the boot display is activated, thus preventing light leakage.

The patent applies local quality by implementing local dimming control instead of global backlight control. The local dimming data are sent to the backlight driver during initialization, enabling individual backlight regions to be controlled independently. This allows the boot display to use a pure black background without flickering or unnatural transitions, while still preventing backlight leakage through precise local control.

The patent applies preliminary action by calculating local dimming data during the Mboot initialization procedure before the Kernel program starts. The data are prepared in advance and stored in memory, then quickly retrieved and sent to the backlight driver. This preliminary calculation approach ensures real-time control accuracy while minimizing the impact on boot-up time, as the heavy computation is completed before the main boot sequence begins.